Versatile real time microprocessor development system

This paper describes the design and use of an EPROM emulator and programmer as low cost development tool. The design is based around a very powerful flash rise microcontroller. In conjunction with cross assemblers and linkers, the emulator allows executable code to be developed using a host computer, and to be directly executed by the target system. The design is flexible in that it can be used as a development tool for target systems based on a variety of microprocessors. Also it can be used as an interface to a host computer or as a standalone unit if the host is not available. These capabilities can eliminate the need to burn EPROMs, erase EPROMs if the code is incorrect, and repeat the sequence until the code is fully debugged.